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dc.contributor.author
Otal, Eugenio Hernan
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dc.contributor.author
Kim, Manuela Leticia
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dc.contributor.author
Dietrich, Steffen
dc.contributor.author
Takada, Ryogo
dc.contributor.author
Nakaya, Shinji
dc.contributor.author
Kimura, Mutsumi
dc.date.available
2023-08-09T14:49:40Z
dc.date.issued
2021-01
dc.identifier.citation
Otal, Eugenio Hernan; Kim, Manuela Leticia; Dietrich, Steffen; Takada, Ryogo; Nakaya, Shinji; et al.; Open-Source Portable Device for the Determination of Fluoride in Drinking Water; American Chemical Society; ACS Sensors; 6; 1; 1-2021; 259-266
dc.identifier.issn
2379-3694
dc.identifier.uri
http://hdl.handle.net/11336/207615
dc.description.abstract
The prolonged exposure to fluorides results in the development of several diseases, from dental fluorosis to crippling deformities of the spine and major joints. The population exposed to high fluoride concentration is located in developing countries where the assurance of water quality is difficult to perform. Addressing this challenge, an open-source system for the determination of fluoride in natural water was developed using the equilibrium between the red Fe-SCN complex and the colorless Fe-F. The reaction develops in cotton substrates to reduce the manipulation of liquid reagents and reduce the errors by nontrained operators. The system was optimized by image analysis and implemented in an open-source Arduino-based device and data was acquired through the serial port of a cell phone, which is also used as a power source, avoiding the use of a battery and reducing production costs. The device showed a detection limit of 0.7 mg L-1 and a linear range of up to 8 mg L-1. This extended detection limit makes the device useful for the application in regions where the fluoride concentration in drinking water is far higher than the United Nations limit (1.5 mg L-1), e.g., the United Republic of Tanzania, where the upper limit of F- was extended to 4 mg L-1 or in USA, where the Environmental Protection Agency established the Maximum Contaminant Level of F- in drinking water at 4 mg L-1. The method was tested with natural waters from the Arusha region in the northeast of Tanzania and validated against the results from ion chromatography showing a good correlation. The developed device exhibits chemical stability of 5 days, allowing it to be manufactured and distributed in local areas and, also, modified according to the requirements of the water composition due to Industry 4.0 concepts used in the design.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Chemical Society
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ARDUINO
dc.subject
FLUORIDE
dc.subject
IMAGE ANALYSIS
dc.subject
INDUSTRY 4.0
dc.subject
OPEN SOURCE
dc.subject.classification
Química Analítica
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dc.subject.classification
Ciencias Químicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Open-Source Portable Device for the Determination of Fluoride in Drinking Water
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-08-09T12:54:04Z
dc.journal.volume
6
dc.journal.number
1
dc.journal.pagination
259-266
dc.journal.pais
Estados Unidos
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dc.description.fil
Fil: Otal, Eugenio Hernan. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Tecnológica Nacional. Facultad Regional Buenos Aires. Unidad de Investigación y Desarrollo de las Ingenierías; Argentina
dc.description.fil
Fil: Kim, Manuela Leticia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Tecnológica Nacional. Facultad Regional Buenos Aires. Unidad de Investigación y Desarrollo de las Ingenierías; Argentina
dc.description.fil
Fil: Dietrich, Steffen. No especifíca;
dc.description.fil
Fil: Takada, Ryogo. Shinshu University; Japón
dc.description.fil
Fil: Nakaya, Shinji. Shinshu University; Japón
dc.description.fil
Fil: Kimura, Mutsumi. Shinshu University; Japón
dc.journal.title
ACS Sensors
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/full/10.1021/acssensors.0c02273
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1021/acssensors.0c02273
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